51277402 has 16 divisors (see below), whose sum is σ = 84048192. Its totient is φ = 23269120.

The previous prime is 51277381. The next prime is 51277403. The reversal of 51277402 is 20477215.

It is not an unprimeable number, because it can be changed into a prime (51277403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14778 + ... + 17914.

It is an arithmetic number, because the mean of its divisors is an integer number (5253012).

Almost surely, 2^51277402 is an apocalyptic number.

51277402 is a deficient number, since it is larger than the sum of its proper divisors (32770790).

51277402 is a wasteful number, since it uses less digits than its factorization.

51277402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 51277402 is about 7160.8241145835. The cubic root of 51277402 is about 371.5141313602.

The spelling of 51277402 in words is "fifty-one million, two hundred seventy-seven thousand, four hundred two".